/Engine/Source/Editor/AnimGraph/Public/AnimGraphNode_BlendListBase.h
Removes removed pins and adjusts array indices of remained pins
void RemovePinsFromOldPins ( [TArray](API\Runtime\Core\Containers\TArray)< [UEdGraphPin](API\Runtime\Engine\EdGraph\UEdGraphPin) * > & OldPins, int32 RemovedArrayIndex )